CN104214996B - Parallel-flow evaporator - Google Patents
Parallel-flow evaporator Download PDFInfo
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- CN104214996B CN104214996B CN201310213759.3A CN201310213759A CN104214996B CN 104214996 B CN104214996 B CN 104214996B CN 201310213759 A CN201310213759 A CN 201310213759A CN 104214996 B CN104214996 B CN 104214996B
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Abstract
The invention discloses a kind of parallel-flow evaporator, including parallel arrangement of first header and the second header, parallel arrangement of third header and the 4th header；It is connected to respectively by flat tube between the second header and the 4th header between first header and third header；First header and the second header are separated into mutual disconnected first segment, second segment and third section, the first segment and third section of the two and are respectively communicated with；Second segment is not connected to and is respectively equipped with fluid inlet and fluid outlet；Third header and the 4th header are not connected to；When the non-perpendicular placement of flat tube, third header is separated into mutually disconnected first and second, and first is connected to by flat tube with the first header first segment and second segment, and second is connected to by flat tube with the first header second segment and third section.Parallel-flow evaporator provided by the invention is conducive to evenly distributing for refrigerant, it is suppressed that the gas-liquid layering in flow process improves the performance of parallel-flow evaporator.
Description
Technical field
The present invention relates to vaporizer technology fields, more particularly to a kind of parallel-flow evaporator.
Background technology
Parallel-flow evaporator has the characteristics that high cooling efficiency, small, light-weight, is gradually applied in air conditioning for automobiles
In system.
Parallel-flow evaporator is to change the form of the disengaging of the refrigerant single channel of band-tube evaporator or two-way and disengaging of connecting
Become the form of the double-deck multipaths disengaging.Parallel-flow evaporator includes two header groups, and each header group can including two
With the header mutually to circulate；Wherein, two headers of a header group respectively with two affluxs of another header group
Pipe is connected to, and is connected to by flat tube between header, radiating fin is equipped between adjacent flat tube, to enhanced water evaporation device and air
The heat exchange efficiency of side.
Partition board is set in the inside of above-mentioned header, all flat tubes can be divided into several flows, reasonable distribution is every
The flat tube number of a flow, you can obtain preferable parallel-flow evaporator heat exchange efficiency.
The setting of the header internal partition of existing parallel-flow evaporator, generally so that refrigerant each section of header flow
Differing, gap is larger, such as in the too long in flow of header section, and it is too short in another section of flow, refrigerant is influenced in afflux
The flowing in each section is managed, to influence refrigerant evenly distributing in flat tube, further, since refrigerant is in longer flow
It is easy gas-liquid layer separation, can also influence the performance of parallel-flow evaporator.
In view of this, how to improve the structure of parallel-flow evaporator, shorten flow of the refrigerant in header, to press down
The gas-liquid layer separation of refrigerant processed ensures refrigerant evenly distributing in flat tube, is that those skilled in the art need to solve at present
Certainly the technical issues of.
Invention content
The object of the present invention is to provide a kind of parallel-flow evaporator, which can inhibit refrigerant in runner
Interior gas-liquid layer separation ensures refrigerant evenly distributing in flat tube.
In order to solve the above technical problems, the present invention provides a kind of parallel-flow evaporator, including：
Parallel arrangement of first header and the second header and parallel arrangement of third header and the 4th header；
First header is connected to the third header by more flat tubes, second header and the 4th header
It is connected to by more flat tubes；
First header and second header are separated into mutual disconnected first segment, second segment and the respectively
Three sections；The first segment of first header, third section are connected to the first segment of second header, third section respectively；Institute
The second segment for stating the first header is not connected to the second segment of second header；
The second segment of the second segment of first header and second header is respectively equipped with fluid inlet and fluid
Outlet；
The third header is not connected to the 4th header；When the non-perpendicular placement of the flat tube, the third collection
Flow tube is separated into mutually disconnected first and second, and described first passes through the flat tube and first header
First segment and second segment connection, described second second segment and third Duan Lian by the flat tube and first header
It is logical.Preferably, the fluid inlet is located at the middle part of the second segment of first header, and the fluid outlet is located at described the
The middle part of the second segment of two headers.
Preferably, the equal length of the first segment and third section of first header, the first of second header
The equal length of section and third section.
Preferably, the length of the second segment of first header is twice of its first segment length, second afflux
The length of the second segment of pipe is twice of its first segment length.
Preferably, first length of the third header is equal to its second length.
Preferably, be equipped in the third header and the 4th header inhibit the layering of fluid gas-liquid it is with holes every
Plate.
Preferably, the first segment of the first segment of first header and second header is by being set to its junction
Through-hole connection, the second segment of the third section of first header and the third header passes through set on the logical of its junction
Hole is connected to.
Preferably, radiating fin is equipped between the flat tube.
Preferably, the radiating fin is corrugated radiating fin.
Preferably, the radiating fin is shutter shape radiating fin.
Relatively above-mentioned background technology, parallel-flow evaporator provided by the invention make refrigerant collect by the improvement of structure
Flow in flow tube shortens, and is conducive to refrigerant evenly distributing between flat tube.Specifically, first header and described
Second header is separated into mutual disconnected first segment, second segment and third section respectively；The first segment of first header,
Third section is connected to the first segment of second header, third section respectively；The second segment of first header and described
The second segment of two headers is respectively equipped with fluid inlet and fluid outlet；The second segment of first header collects with described second
The second segment of flow tube is not connected to；The third header is not connected to the 4th header；It is described when the non-perpendicular placement of flat tube
Third header is separated into mutually disconnected first and second, and described first is collected by the flat tube and described first
The first segment and second segment of flow tube are connected to, described second second segment and third by the flat tube and first header
Duan Liantong.After such setting, flow of the refrigerant in each header shortens, and avoids refrigerant in flow process and needs to flow
The situation for crossing entire header is conducive to refrigerant evenly distributing in flat tube, simultaneously effective inhibits in flow process
Gas-liquid layering, improve the performance of parallel-flow evaporator.
In the preferred embodiment of the present invention, the first segment and third segment length of first header are equal, and described second
The equal length of the first segment and third section of header, and two that the second segment length of the first header is its first segment length
Times, the second segment length of the second header is twice of its first segment length, and first and second of third header
Equal length；It is arranged such so that refrigerant is roughly the same in the flow of the various pieces of each header, is more advantageous to refrigerant
Evenly distributing in flat tube can further improve the working performance of parallel-flow evaporator.
In the more preferable scheme of the present invention, it is both provided with apertured partition in third header and the 4th header, band
Hole partition board can inhibit the gas-liquid of refrigerant to be layered so that distribution of the biphase gas and liquid flow fluid between flat tube is more uniform.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of embodiment of parallel-flow evaporator provided by the present invention；
Fig. 2 is the structural schematic diagram of upper header group in Fig. 1；
Fig. 3 is the structural schematic diagram of lower header group in Fig. 1；
Fig. 4 and Fig. 5 is the flow schematic diagram in refrigerant parallel-flow evaporator shown in Fig. 1.
In Fig. 1-Fig. 5：
Upper header group 10, the first header 11, the first header first segment 111, the first header second segment 112,
One header third section 113, fluid inlet 114, the second header 12, the second header first segment 121, the second header second
The 122, second header third section 123 of section, fluid outlet 124, non-porous upper spacer 13, flanging bore 14, through-hole 15；
Lower header group 20, third header 21, third header first 211, third header second 212,
Four headers 22, the 4th header first end 221, the 4th header second end 222, non-porous lower clapboard 23, flange punching 24；
Flat tube 30, radiating fin 40.
Specific implementation mode
Core of the invention is to provide a kind of parallel-flow evaporator, which can inhibit refrigerant in runner
Interior gas-liquid layer separation ensures refrigerant evenly distributing in flat tube.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It may be noted that upper, the involved upper and lower equal nouns of locality herein, be to be located in figure with parts in Fig. 2 and zero
Position between component is intended merely to the clear of statement technical solution and conveniently come what is defined.It should be appreciated that the noun of locality
Use the protection domain that should not limit the application request.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of embodiment of parallel-flow evaporator provided by the present invention.
In this kind of embodiment, parallel-flow evaporator includes upper header group 10 and lower header group 20；Upper header
Group 10 includes 11 and second header 12 of parallel arrangement of first header, and lower header group 20 includes parallel arrangement of third collection
Flow tube 21 and the 4th header 22, wherein it is connected to by more flat tubes 30 between the first header 11 and third header 21, the
It is connected to by more flat tubes 30 between two headers 12 and the 4th header 22；Radiating fin is equipped between adjacent two flat tube 30
40, to strengthen the heat exchange efficiency of parallel-flow evaporator and air side；Radiating fin 40 can be corrugated or shutter shape.
Please also refer to the structural schematic diagram that Fig. 2, Fig. 2 are upper header group in Fig. 1.
First header 11 and the second header 12 are divided into first segment, second segment and third section by non-porous upper spacer 13
Three parts；Wherein, the first header first segment 111 is connected to the second header first segment 121, the first header third section 113
It is connected to the second header third section 123, the first header second segment 112 is not connected to the second header second segment 122；Specifically
Ground, in the junction and the first header third section 113 of the first header first segment 111 and the second header first segment 121
It is equipped with several through-holes 15 with the junction of the second header third section 123 so that refrigerant can be in the first header
Between one section 111 and the second header first segment 121 and the first header third section 113 and the second header third section 123
Between flow.
First header second segment 112 is equipped with fluid inlet 114, and the second header second segment 122 goes out equipped with fluid
Mouth 124；It is of course also possible to be arranged fluid inlet on the second header second segment 122, fluid outlet is arranged in the first afflux
On pipe second segment 112.
The lower end of first header 11 and the second header 12 is equipped with flanging bore 14, matches therewith for fixing and being connected to
The flat tube 30 of conjunction.
It is the structural schematic diagram of lower header group in Fig. 1 please also refer to Fig. 3, Fig. 3.
Third header 21 is divided into first and second two parts by non-porous lower clapboard 23；Third header 21 and
The upper end of four headers 22 is equipped with flange punching 24, for fixing and being connected to flat tube 30 with matching.
Third header 21 is not connected to the 4th header 22.
Wherein, third header passes through flat tube 30 and the first header first segment 111 and the first header for first 211
Two section of 112 connection, third header second 212 pass through flat tube 30 and the first header second segment 112 and the first header the
Three section of 113 connection；The refrigerant of the first header second segment 112 of inflow, which is arranged such, to flow into third simultaneously by flat tube 30
Header first 211 and third header second 212.
Non-porous separator plate, the second header first segment 121 and the second header third section 123 are not set in the 4th header 22
Interior refrigerant flows into the 4th collection from the 4th header first end 221 and the 4th header second end 222 respectively by flat tube 30
It merges in flow tube 22, and the second header second segment 122 is flowed by flat tube 30, and flow out concurrent flow from fluid outlet 124 and steam
Send out device.
Please also refer to Fig. 4 and Fig. 5, Fig. 4 and Fig. 5 show flowing signal of the refrigerant in the parallel-flow evaporator
Figure；Wherein, what Fig. 4 was provided is flow schematic diagram of the refrigerant between the first header 11 and third header 21, and Fig. 5 is provided
Be flow schematic diagram of the refrigerant between the 4th header 22 and the second header 12.
Specifically, refrigerant is flowed into from fluid inlet 114 in parallel-flow evaporator, due to the effect of non-porous upper spacer 13,
Refrigerant is introduced into the first header second segment 112, then flows into third header 21 along flat tube 30, due to third header the
One 211 and third header are connected to by flat tube 30 with the first header second segment 112 for second 212, so refrigerant
A part flow into third header first 211, another part flows into third header second 212；Third header
Refrigerant in one 211 flows into the first header first segment 111 along flat tube 30 again, due to 111 He of the first header first segment
Second header first segment 121 is connected to by through-hole 15, so the refrigerant in the first header first segment 111 can pass through through-hole
15 flow into the second header first segment 121；Similarly, the refrigerant in third header second 212 flows into the along flat tube 30
One header third section 113, since the first header third section 113 is connected to the second header third section 123 by through-hole 15,
So the refrigerant in the first header third section 113 also can flow into the second header third section 123 by through-hole 15；Second collection
Refrigerant in flow tube first segment 121 and the second header third section 123 flows into the 4th header first end along flat tube 30 respectively
221 and the 4th header second end 222, since non-porous separator plate not being arranged in the 4th header 22, so refrigerant is in the 4th collection
It merges in flow tube 22, and can flow to the second header second segment 122 by flat tube 30, finally flowed out from fluid outlet 124
Parallel-flow evaporator.
From flowing of the above-mentioned refrigerant in parallel-flow evaporator：Flow of the refrigerant in each header does not reach
To the whole length of header, the flow especially in the first header 11 and the second header 12 is no more than the first collection
The half length of flow tube 11 and the second header 12 substantially reduces refrigeration compared with parallel-flow evaporator in the prior art
Flow of the agent in header is layered, more favorably to effectively prevent the gas-liquid caused by too long in flow in header
In refrigerant evenly distributing in flat tube 30, it is effectively improved the working performance of parallel-flow evaporator.
Further, fluid inlet 114 and fluid outlet 124 be located at the first header second segment 112 middle part and
The middle part of second header second segment 122.So so that refrigerant can pass through flat tube after entering the first header second segment 112
30 evenly distribute to third header first 211 and third header second 212；Refrigerant passes through from the 4th header 22
When flat tube 30 can flow to the second header second segment 122, the flowing in the second header second segment 122 is uniform.
On this basis, the setting of the non-porous upper spacer 13 of the first header 11 makes the first header first segment 111
Length is equal to the length of the first header third section 113, can so evenly distribute refrigerant in 112 He of the first header first segment
The flow of first header third section 113；Meanwhile the length of the first header second segment 112 being made to be equal to the first header first
Section twice of 111 can further make refrigerant more uniform in the flow of 11 each sections of the first header, in this way, refrigerant is the
The flow of one 11 each sections of header is roughly the same, and a quarter of flow 11 length of up to the first header is more advantageous to system
Cryogen evenly distributing in flat tube 30.
Similarly, the setting of the non-porous upper spacer 13 of the second header 12 makes the length of the second header first segment 121
Equal to 123 length of the second header third section, and the length of the second header second segment 122 is the second header first segment 121
Twice of length, such refrigerant is also roughly the same in the flow of 12 each sections of the second header.
On the basis of the above, further, make the length of third header first 211 and third header second 212
It spends identical so that flow of the refrigerant in 21 each portion of third header and the 4th header 22 reaches unanimity, in this way, can be into one
Step shortens flow of the refrigerant in each section of each header, is more advantageous to refrigerant evenly distributing in flat tube 30 and inhibits to make
The gas-liquid of cryogen is layered, and can effectively improve the heat exchange efficiency of parallel-flow evaporator.
It is possible to further which apertured partition is arranged on third header 21 and the 4th header 22, help to inhibit to make
The gas-liquid of cryogen is layered, and makes distribution of the biphase gas and liquid flow fluid between flat tube 30 more uniform；Apertured partition is in third
Position arrangement on header 21 and the 4th header 22 can be determined by simulated experiment.
There is also the need to explanations, when specifically used, the flat tube 30 of the parallel-flow evaporator can be made to be in Vertical Square
To placement, i.e. modes of emplacement in Fig. 1 can simplify assembly in this way, the non-porous lower clapboard 23 in third header 21 can save
Step, and be conducive to the discharge of condensed water；Certainly, if at this point, non-porous lower clapboard 23 is still arranged in third header 21 is also
Can with.
Parallel-flow evaporator provided by the present invention is described in detail above.Specific case pair used herein
The principle of the present invention and embodiment are expounded, and the explanation of above example is only intended to help to understand method of the invention
And its core concept.It should be pointed out that for those skilled in the art, before not departing from the principle of the invention
It puts, can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the guarantor of the claims in the present invention
It protects in range.
Claims (10)
1. a kind of parallel-flow evaporator, including：
Parallel arrangement of first header and the second header and parallel arrangement of third header and the 4th header；It is described
First header is connected to the third header by more flat tubes, and second header and the 4th header pass through
More flat tube connections；
It is characterized in that：
First header and second header are separated into mutual disconnected first segment, second segment and third respectively
Section；The first segment of first header, third section are connected to the first segment of second header, third section respectively；It is described
The second segment of first header is not connected to the second segment of second header；
The second segment of the second segment of first header and second header is respectively equipped with fluid inlet and fluid outlet；
The third header is not connected to the 4th header；
When the non-perpendicular placement of the flat tube, the third header is separated into mutually disconnected first and second, described
First is connected to by the flat tube with the first segment of first header and second segment, and described second passes through the flat tube
It is connected to the second segment of first header and third section.
2. parallel-flow evaporator as described in claim 1, which is characterized in that the fluid inlet is located at first header
Second segment middle part, the fluid outlet is located at the middle part of the second segment of second header.
3. parallel-flow evaporator as claimed in claim 2, which is characterized in that the first segment and third section of first header
Equal length, the equal length of the first segment and third section of second header.
4. parallel-flow evaporator as claimed in claim 3, which is characterized in that the length of the second segment of first header is
Twice of its first segment length, the length of the second segment of second header are twice of its first segment length.
5. parallel-flow evaporator as claimed in claim 4, which is characterized in that first length etc. of the third header
In its second length.
6. such as parallel-flow evaporator described in any one of claim 1 to 5, which is characterized in that the third header and described
The apertured partition for inhibiting the layering of fluid gas-liquid is equipped in 4th header.
7. such as parallel-flow evaporator described in any one of claim 1 to 5, which is characterized in that the first of first header
Section be connected to by the through-hole set on its junction with the first segment of second header, the third section of first header with
The third section of second header passes through the through-hole connection set on its junction.
8. such as parallel-flow evaporator described in any one of claim 1 to 5, which is characterized in that be equipped with heat dissipation between the flat tube
Fin.
9. parallel-flow evaporator as claimed in claim 8, which is characterized in that the radiating fin is corrugated radiating fin.
10. parallel-flow evaporator as claimed in claim 8, which is characterized in that the radiating fin is shutter shape radiating fin
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213759.3A CN104214996B (en) | 2013-05-31 | 2013-05-31 | Parallel-flow evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213759.3A CN104214996B (en) | 2013-05-31 | 2013-05-31 | Parallel-flow evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104214996A CN104214996A (en) | 2014-12-17 |
| CN104214996B true CN104214996B (en) | 2018-09-11 |
Family
ID=52096747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213759.3A Active CN104214996B (en) | 2013-05-31 | 2013-05-31 | Parallel-flow evaporator |
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| CN (1) | CN104214996B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879960A (en) * | 2015-07-03 | 2015-09-02 | 合肥卡诺汽车空调有限公司 | Corrugated cooling fin for parallel flow evaporator |
| CN105972870A (en) * | 2016-07-22 | 2016-09-28 | 美的集团武汉制冷设备有限公司 | Heat exchanger, air conditioner indoor unit and air conditioner |
| US20210156630A1 (en) * | 2017-10-30 | 2021-05-27 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat exchange assembly, battery assembly and battery heat exchange system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216209A (en) * | 2008-01-18 | 2008-07-09 | 上海精励汽车科技有限公司 | Automobile air conditioner parallel flow evaporator |
| CN201368619Y (en) * | 2009-02-03 | 2009-12-23 | 浙江康盛股份有限公司 | Heat-pump type parallel flow heat exchanger |
-
2013
- 2013-05-31 CN CN201310213759.3A patent/CN104214996B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216209A (en) * | 2008-01-18 | 2008-07-09 | 上海精励汽车科技有限公司 | Automobile air conditioner parallel flow evaporator |
| CN201368619Y (en) * | 2009-02-03 | 2009-12-23 | 浙江康盛股份有限公司 | Heat-pump type parallel flow heat exchanger |
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| CN104214996A (en) | 2014-12-17 |
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Owner name: HANGZHOU SANHUA MICRO CHANNEL HEAT EXCHANGER CO., Free format text: FORMER OWNER: HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD. Effective date: 20141219 |
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Effective date of registration: 20141219 Address after: 310018 No. 289-1, No. 12, Hangzhou economic and Technological Development Zone, Zhejiang Applicant after: Sanhua Micro Channel Heat Exchanger Inc. Address before: 310018 289-2, Hangzhou Economic Development Zone, Zhejiang, No. 12 Applicant before: Hangzhou Sanhua Institute Co., Ltd. |
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